Microsoft Launches Windows DNA for Manufacturing
- Microsoft launched a collaborative initiative aimed at producing a technical architecture that will reduce costs and simplify the process of deploying, integrating and managing systems for manufacturing enterprises. (Microsoft)
- http://www.microsoft.com/presspass/press/1999/Feb99/DNApr.mspx

Technosoftware Inc.
- Toolkits and utilities for developers of OPC servers, clients and diagnostic tools.
- http://www.technosoftware.com/

ascolab GmbH - automation systems communication laboratory
- Supplies consulting and development services in the area of industrial communication based on OPC technology. OPC related downloads, demos, documentation, and links.
- http://www.ascolab.com/

Kepware OPC
- Offers OPC for industrial automation needs, including servers, clients, bridging software, and converters.
- http://www.kepware.com/

OPC Labs
- Provides various advanced products based on OPC technology or related to it, with a focus on OPC Server development, OPC Client development, and custom OPC solutions.
- http://www.opclabs.com

OPC Specification
- The specifications of the OPC standard architecture.
- http://www.opcfoundation.org/